"Ry\u014Dhei Kimura"@en . . . "Crazy Tunes is the character song for Charles Grey for Kuroshitsuji: Book of Murder. It is sung by Ry\u014Dhei Kimura."@en . "Crazy Tunes is the character song for Charles Grey for Kuroshitsuji: Book of Murder. It is sung by Ry\u014Dhei Kimura."@en . "Crazy Tunes"@en . . "Crazy Tunes"@en . "Crazy Tunes"@en . . "Character song"@en .